I want to create a char array

[dsingh]

Dear frd
I want to create a char array that have values in form of
0x31,0x38 etc all pure hex from string.
string is like "3703031313132.."
i have to take two char from string and save as one char in array
like first take 37 and store as 0x37 in array
pls help me

[bithub]

Here's some information to get you started. If you take the ASCII number in your string, and subtract 30 from it, you will get the hex value you are looking for.

[Brian]

char str[] = {0x37, 0x38, etc};
char firstchar = str[0];

[quzah]

char *s, array[] = "Hello World!";
for( s = array; s && *s; s++ )
    printf("0x%x ", *s );

Or did you mean you wanted the string new array to be something like:

char newarray[] = "0x48 0x65 0x6c 0x6c 0x6f 0x20 0x57 0x6f 0x72 0x6c 0x64 0x21";

If so, if you don't want spaces between the hex digits, and you don't want the 0x, just create a string twice the size of the length of the other string, plus one, and stick them in there.

I'll leave that as an exercise for the reader, since it's fairly easy, and we have to leave something for you to do...

Quzah.